Direction of suture lines in Z-plasty scar revision.

Conventional methods of Z-plasty, a basic technique of plastic surgery, are incorrect since they are based on the assumption that the suture lines as designed prior to Z-plasty and those that actually result will coincide. For Z-plasty to be satisfactorily applied in scar revision, sufficient thought must be given to the actual directions in which the suture lines will lie in comparison with those envisioned.